Answer:
1.
Explanation:
Sunlight and carbon dioxide are used to make atp
I think the kind of choices would be primary or secondary source: and this would be a secondary source:
a primary source would be the journals where the results were published and the secondary would be the tv program that used those reports as a primary report!
so the answer is secondary source!
Because, it is the process by which they make or produce their food with the help of sunlight, water and carbon dioxide.
If photsynthesis is not there then there would be no production of food and ultimatley plants will die.
